Coolant level after dealer visit

[BAQ717]

Recently had my truck in for its 2 year service and the 12.3 recall. Noticed the A/C wasn’t working right on the drive home and discovered they didn’t plug in the fan assembly after updating the software for the display. While doing so I noticed that my coolant level seems to be low - picture was taken in the morning prior to running the engine. Any thoughts? Dealer states they added coolant but it sure doesnt appear so.

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[maxx075]

Not sure why they would have to unplug the fan for the display recall? Maybe that's SOP, but sounds odd.

I know that's SOP for the BSM recall.

As far as the coolant though, I had to have them look at mine because I was below the "L" mark after about 2 years of ownership. Would occasionally get a hint of the sweet antifreeze smell after I had turned the truck off. They refilled it back to the full mark.
No leaks that I can see, but I've had to occasionally check it just to make sure.